<template>
  <div >
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
    </div>
    <div class="search-content" ref="wrapper" v-show="keyword">
      <ul>
        <li class="search-item border-bottom" v-for="(item, index) in list" :key="index" @click="handleCityClick(item.name)">{{item.name}}</li>
        <li class="search-item border-bottom noData" v-show="hasNoData">没有找到匹配数据</li>
      </ul>
    </div>
  </div>
</template>

<script>
// 区域滚动插件
import Bscroll from 'better-scroll'

import { mapMutations } from 'vuex'

export default {
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data () {
    return {
      keyword: '',
      list: [],
      timer: null
    }
  },
  computed: {
    hasNoData () {
      return !this.list.length
    }
  },
  watch: {
    keyword () {
      console.log(this.keyword)
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyword) {
        this.list = []
        return
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach((val) => {
            if (val.spell.indexOf(this.keyword) > -1 || val.name.indexOf(this.keyword) > -1) {
              result.push(val)
            }
          })
        }
        this.list = result
      }, 100)
    }
  },
  methods: {
    handleCityClick (city) {
      // this.$store.dispatch('changeCity', city)
      // this.$store.commit('changeCity', city)
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapMutations(['changeCity'])
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.wrapper)
  }
}
</script>

<style lang="stylus" scoped>
  @import "~css/varibles.styl"
  .search
    height :.73rem
    padding :0 .2rem
    background :$bgColor
    .search-input
      font-size :.3rem
      width :100%
      height :.62rem
      line-height: .62rem
      text-align :center
      border-radius :.06rem
      color :#666
      padding :0 .1rem
      box-sizing border-box
  .search-content
    overflow :hidden
    position :absolute
    top: 1.58rem
    bottom: 0
    left: 0
    right: 0
    z-index :1
    background :#eee
    .search-item
      line-height: .62rem
      padding-left: .2rem
      background :#fff
      color :#666
    .noData
      text-align center
</style>
